After Dao found out that Anurak and his girlfriend were having issues, she sought P'Sud's help in wooing Anurak. P'Sud told her to be patient. He was sure that Anurak and Sophea would eventually break up. Once that happens, Dao would be able to take over.
Dao wanted to be patient, but when she told her friends, Achara reminded her that Anurak was hot cake. It would be first come, first served once he became a free man. This was why she decided to stick to him as close as possible.